# big gun

> English word · Noun

## Definitions
1. A large artillery gun or one of the largest-caliber naval guns (as on a battleship).
2. A person, group, thing, or course of action that is powerful, influential, or particularly effective.
3. A large surfboard used to ride very large, powerful waves.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-09-03.
Canonical page: https://plainspell.com/en/word/big-gun